Format:
1 Online-Ressource (XIV, 126 Seiten)
,
67 Illustrationen
Edition:
Springer eBook Collection. Physics and Astronomy
ISBN:
9783030125363
Series Statement:
Springer Theses
Content:
Turbulence in plasma surface interaction holds crucial uncertainties for its impact on material erosion in the operation of fusion reactors. In this thesis, the design, development and operation of a Thomson scattering diagnostic and its novel implementation with fast visual imaging created a versatile tool to investigate intermittently occuring plasma oscillations. Specifically, ballistic transport events in the plasma edge, constituting turbulent transport, have been targeted in this thesis. With the help of a custom photon counting algorithm, the conditional averaging technique was applied on Thomson scattering for the first time to allow spatial and pseudo-time-resolved measurements. Since plasma turbulence and the emerging transport phenomena are comparable in most magnetized devices, the diagnostic development and the results from the linear plasma device PSI-2 are useful for an implementation of similar techniques in larger fusion experiments. Furthermore, the obtained results indicate a strong enhancement of erosion with turbulent transport and thus underline the importance of dedicated experiments investigating plasma turbulence in the framework of erosion in future fusion reactors
Content:
Introduction -- Plasma Wall Transition Dynamics -- Laser Light Scattering as Plasma Diagnostic -- Experimental Setup on PSI-2 -- Thomson Scattering Setup -- Data Analysis and Calibration -- Steady State Plasma Results -- Plasma Turbulence Results -- Summary and Conclusion
Note:
Dissertation Research Center Jülich 2017
Additional Edition:
ISBN 9783030125356
Additional Edition:
ISBN 9783030125370
Additional Edition:
ISBN 9783030125387
Additional Edition:
Erscheint auch als Druck-Ausgabe ISBN 978-3-030-12535-6
Additional Edition:
Printed edition ISBN 9783030125356
Additional Edition:
Printed edition ISBN 9783030125370
Additional Edition:
Printed edition ISBN 9783030125387
Language:
English
Keywords:
Fusionsreaktor
;
Thomson-Streuung
;
Plasmadiagnostik
;
Turbulente Strömung
;
Spektroskopie
;
Magnetischer Einschluss
;
Transportprozess
;
Plasmabrenner
;
Elektronische Eigenschaft
;
Oberfläche
;
Hochschulschrift
DOI:
10.1007/978-3-030-12536-3
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